package pl.wr.particle.def.matter.quasiparticles;

import pl.wr.particle.def.matter.typeparticle.IQuasiParticle;

/**
 * A trion is a localized excitation which consists of three charged
 * quasiparticles. A negative trion consists of two electrons and one hole and a
 * positive trion consists of two holes and one electron. The trion itself is a
 * quasiparticle and is somewhat similar to an exciton, which is a complex of
 * one electron and one hole. The trion has a ground singlet state (spin s =
 * 1/2) and an excited triplet state (s = 3/2). Here singlet and triplet
 * degeneracies originate not from the whole system but from the two identical
 * particles in it. The half-integer spin value distinguishes trions from
 * excitons in many phenomena; for example, energy states of trions, but not
 * excitons, are split in an applied magnetic field. Trion states were predicted
 * theoretically and then observed experimentally in various optically excited
 * semiconductors, especially in quantum dots and quantum well structures.[1][2]
 * 
 * @version 1.0
 * @author wieslaw.rodak
 *
 */
public interface ITrion extends IQuasiParticle{

}
